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Air conditioner and control method thereof

A control method and air-conditioning technology, which is applied in the direction of control input involving air characteristics, space heating and ventilation control input, heating and ventilation control system, etc., and can solve problems such as air-conditioning shutdown and elevation

Inactive Publication Date: 2018-04-20
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method cannot effectively solve the above problems in some cases, because the temperature of the indoor evaporator will directly rise to the temperature value of high temperature protection during the process of stopping the external fan, forcing the air conditioner to stop

Method used

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  • Air conditioner and control method thereof
  • Air conditioner and control method thereof
  • Air conditioner and control method thereof

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Embodiment Construction

[0023] This embodiment first provides an air conditioner, which is composed of an indoor unit and an outdoor unit. The interior of the indoor unit includes an indoor unit heat exchanger 200 and an indoor unit fan 300. The main body of the indoor unit heat exchanger 200 is composed of a refrigerant coil. The refrigerant in the coil performs heat exchange. The indoor unit fan 300 is used to exhaust the air that has exchanged heat with the indoor unit heat exchanger 200 inside the indoor unit. The above-mentioned air conditioner also includes: an indoor temperature detection module 410 , a target temperature acquisition module 420 , a main control module 500 and a coil temperature detection module 210 .

[0024] The indoor temperature detection module 410 is configured to detect the indoor ambient temperature, and the indoor temperature detection module 410 may be a temperature sensor disposed on the surface of the indoor unit. The target temperature obtaining module 420 is conf...

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Abstract

The invention provides an air conditioner and a control method thereof. The control method comprises the steps that the initial rotating speed of a fan of an air conditioner indoor unit is set according to the difference value between the indoor environment temperature and the target temperature; and then the rotating speed of the fan of the indoor unit is further adjusted on the basis of the initial rotating speed according to the temperature of a coil pipe. According to the method, during the heating period of the air conditioner, the heat exchange rate of an indoor unit heat exchanger is controlled by adjusting the rotating speed of the fan of the indoor unit so that the temperature of the indoor unit heat exchanger can be always within a proper temperature range, and the problem of damage to the air conditioner caused by the fact that temperature of the heat exchanger is too high can be solved.

Description

technical field [0001] The invention relates to the field of air conditioners, in particular to an air conditioner and a control method thereof. Background technique [0002] When the air conditioner is heating, the refrigerant flows through the compressor, evaporator and condenser in sequence. The refrigerant releases heat as it passes through the evaporator. In the existing fixed-frequency air conditioners, since the frequency of the compressor is constant, the heating capacity is relatively constant, which easily causes the temperature of the indoor evaporator to be too high. When the temperature of the evaporator exceeds a certain limit, the air conditioner will activate the high temperature protection function, that is, control the compressor to stop and stop heating. [0003] In order to prevent the compressor from shutting down due to the high temperature of the evaporator, most of the existing technical means are to control the fan of the outdoor unit to stop rotat...

Claims

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Application Information

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IPC IPC(8): F24F11/89F24F11/00F24F110/10
Inventor 张建雄王祯祯徐军瑞王月亮黄小凡张静
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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